The macromolecular structure of composite wound dressings was characterized by Fourier Transform Infrared (FTIR) and X-ray diffraction (XRD). The FTIR spectra were measured by Nicolet 6700 FTIR spectroscopy (Thermo Fisher Scientific, Waltham, MA, USA) in the attenuated total reflection mode (ATR). The absorption spectral range was 500–4000 cm−1. The crystal and aggregation structure of CM-Chit and CAF macromolecules were investigated by the D/max RB X-ray diffractometer (Rigaku Co., Tokyo, Japan) with Nickel-filtered Cu kα radiation in the 2θ range of 0–60°.
Nicolet 6700 ftir spectroscopy
Manufactured by Thermo Fisher Scientific
Sourced in United States
The Nicolet 6700 FTIR spectroscopy is a laboratory instrument that utilizes Fourier Transform Infrared (FTIR) spectroscopy technology to analyze the composition and structure of various materials. It is capable of detecting and identifying a wide range of organic and inorganic compounds by measuring the absorption or transmission of infrared radiation.
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2 protocols using nicolet 6700 ftir spectroscopy
1
Characterization of Composite Wound Dressings
2
Comprehensive Characterization of Polymer Films
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Both the Ctrl‐DS and PAT‐DS films prepared in this study were characterized using scanning electron microscopy (SEM), Fourier transform infrared (FT‐IR) spectroscopy, and differential scanning calorimetry (DSC).
A Quanta 450 SEM (FEI, USA) was used to observe the surface morphology as well as the cross‐sectional morphology of the films at an accelerating electron voltage of 30 kV. Before SEM imaging, all the samples were sputter‐coated with a 15‐nm thick layer of gold‐palladium. A Nicolet 6700 FT‐IR spectroscopy (Thermo Scientific) equipped with an attenuated total reflection (ATR) accessory was used to characterize the film surfaces. All the IR spectra presented here were collected at 512 scans with a spectral resolution of 4 cm−1. A DSC Q200 (TA Instruments) was used to characterize the thermal properties of all the films prepared in this study. For this characterization, the film samples weighing 8 to 10 mg were sealed in an aluminum pan and heated from 0 to 350°C at a scanning rate of 10°C/min. All the measurements were carried out in a chamber purged with nitrogen gas at a flow rate of 40 mL/min.
A Quanta 450 SEM (FEI, USA) was used to observe the surface morphology as well as the cross‐sectional morphology of the films at an accelerating electron voltage of 30 kV. Before SEM imaging, all the samples were sputter‐coated with a 15‐nm thick layer of gold‐palladium. A Nicolet 6700 FT‐IR spectroscopy (Thermo Scientific) equipped with an attenuated total reflection (ATR) accessory was used to characterize the film surfaces. All the IR spectra presented here were collected at 512 scans with a spectral resolution of 4 cm−1. A DSC Q200 (TA Instruments) was used to characterize the thermal properties of all the films prepared in this study. For this characterization, the film samples weighing 8 to 10 mg were sealed in an aluminum pan and heated from 0 to 350°C at a scanning rate of 10°C/min. All the measurements were carried out in a chamber purged with nitrogen gas at a flow rate of 40 mL/min.
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